Evidence row 1791934

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/kb/reliable-webhook"
    ]
  ],
  "name": "Saylor Innovations Guide Library",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:reliable-webhook",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:reliable-webhook",
          "name": "USD Coin",
          "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:reliable-webhook",
          "name": "USD Coin",
          "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:reliable-webhook",
          "reference": "BLLAT9u7Z2WyU5ibQvAYUKpaeQxMfnaLEVKPurpkvWwp",
          "session": "eyJhcnRpY2xlSWQiOiJyZWxpYWJsZS13ZWJob29rIiwicmVmZXJlbmNlIjoiQkxMQVQ5dTdaMld5VTVpYlF2QVlVS3BhZVF4TWZuYUxFVktQdXJwa3ZXd3AiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQzMjE0MzA3M30.Ee6b-C6tAfgtw0c_3bj4K70853_f4wXE1stjsm_G9S8"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:reliable-webhook",
          "reference": "CF7rTCgKvxNKapYHHG5jz84CrFDFn3ozSry5JDz9FEk9",
          "session": "eyJhcnRpY2xlSWQiOiJyZWxpYWJsZS13ZWJob29rIiwicmVmZXJlbmNlIjoiQ0Y3clRDZ0t2eE5LYXBZSEhHNWp6ODRDckZERm4zb3pTcnk1SkR6OUZFazkiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQzMjE0MzA3NH0.T8GWZAY8VlBlKc_khdgOU7iyTUumuf2P1saH6DqHwC4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "93206",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:reliable-webhook",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "96089",
          "reference": "C58KkmmwYvYKeFxVZL7yEHN6SQX38cWZ2r4AmbCxmKfs",
          "session": "eyJhcnRpY2xlSWQiOiJyZWxpYWJsZS13ZWJob29rIiwicmVmZXJlbmNlIjoiQzU4S2ttbXdZdllLZUZ4VlpMN3lFSE42U1FYMzhjV1oycjRBbWJDeG1LZnMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTMyMDYsImV4cCI6MTc5MjQzMjE0MzA3NH0.up1Rd3XoctwazTSZ-JnvOwJEa7r3YagIhj9E5TfHSMo",
          "solUsdPrice": 104.07
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Reliable webhook receiver - raw-body auth, replay protection, durable queue and idempotent processing",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "body": "A webhook receiver that authenticates the exact raw request, blocks replay, acknowledges within provider deadlines, durably queues work, processes idempotently, retries with bounded policy, and supports replay/reconciliation without duplicate business effects.",
              "c": "Self-Hosting & Infra",
              "id": "reliable-webhook",
              "t": "Reliable Webhook Implementation Guide"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "body": {
                      "description": "Main body text",
                      "type": "string"
                    },
                    "c": {
                      "description": "Category of the guide",
                      "type": "string"
                    },
                    "id": {
                      "description": "Identifier of the record",
                      "type": "string"
                    },
                    "license": {
                      "description": "License identifier",
                      "type": "string"
                    },
                    "price": {
                      "description": "Price",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "t": {
                      "description": "Title of the guide",
                      "type": "string"
                    }
                  },
                  "required": [
                    "id",
                    "t",
                    "c",
                    "body"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-19T17:47:03.111Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T17:47:02.793Z"
    },
    "resource": "https://saylorinnovations.com/api/kb/reliable-webhook",
    "serviceName": "Saylor Innovations Guide Library",
    "tags": [
      "webhooks",
      "retries",
      "idempotency",
      "reliability"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Reliable webhook receiver - raw-body auth, replay protection, durable queue and idempotent processing"
}

What the leaf hashes

{"body":"49faa5344e2f0e85a3b7fe32530b59bc8ca2f6ed7515a9c69fd1586b4d1c8c07","id":1791934,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793559996649015,"prev":120283,"subject":"x402_bazaar:https://saylorinnovations.com/api/kb/reliable-webhook","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xd0473a3e21dcbaec49ad4715a5859f741161ca34a7b530275f395ad9e786ae4a
2. 0x7e5def7390fb520bcb7c81def7b4271183145ff7d9775a833e5a0577f646d84c
3. 0xd1f648aacaf79015f4e047c9a9a88c8686d681e2cfca12d0b4e3b8227c8a552f
4. 0x74a3db8fdc501f438512ced0ce68b0c97bd55d9ca8fddb9c7189c6c543d02ac1
5. 0xf14509e837ed0b3567115ec7440db9a4a4567c5bfdd1aa4ef65d2715f6234526
6. 0xedcd622ed3211becc133b2c50f5b25124eaf31f43784f62bb2ff5e506c42a871
7. 0xa86710d0a552da1350232fb518ce6ce116439643b6c68ee29b6b83a215049e8f
8. 0x9334d1035035e5ee6f2d4e7ccaa47eca2b60cbcf0f960a64bfc31b6cd3e3287e
9. 0xb3ec5526286e1453446f7c171d79544bc1a835466e1abe4711dbf6a547f055f2
10. 0xdc0fd907f9e3ed6e3f9cb36a5850b747b19247903f7bc03080c5ee63dbc267d7
11. 0x9068af017c80bba828d931e583d86ff9a847bc48db3947583079ff95c79f6da6
12. 0x0032986be0486517c7f89f9578ee463311586d03dc0068111a40585b1de3cbab
13. 0x3050daa45d874dca785f324e89aca8fa3ef2f8a889ac7ef7a4ed23bd6db53a62
14. 0x57b5e8b79f831258fde2efa4c7b70cd486ce34b32e7d612a6965c086ed7a75e8
15. 0xd3f5c237675f14686b3a3c2715c6735a96952155107d7b2cb9a44c56420170bd
16. 0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90